Auxiliary fireplace-heater



D. McLEOD. AUXILIARY rmsmcs HEATER. APPLICATION FILED SEPT- 31 l9l9.1,361,389, v Patented Dec. 7; 1920.

2 SHEETS-SHEET l- A. 0. McLEOD. AUXILIARY FIREPLACE HEATER.

APPLICATION FILED SEPT- 3; I9l9.

Patented Dec. 7, 1920. 2 SHEETS-SHEET 2- tion accomplishing the above.ments in Auxiliary Fireplace-Heaters,

auxiliary PATENT- OFFICE.

- ALEXANDER DUNCAN MCLEOD, 0F ARCOLA, SASKATCHEWAN, CANADA.

AUXILIARY FIREPLACE-HEATER.

Specification of Ihetters Patent.

. Patented Dec. 7, 1920.

Application filed September 3, 1919. Serial No. 321,505.

) To all whom it may concern Be it known that I, ALEXANDER DUNCANMoLnon, of the town of Arcola, in the Province of Saskatchewan, Canada,have invented certain new and useful lmprove which the followin is thespecification.

The invention re ates to improvements in fireplace heaters and thegeneral object of the invention is to provide a device designed toconserve and utilize. the

heat in open fireplaces and ordinary wasted their heating capacity as athereby increase heating agent.

A further object is to provide a construcobject which can be readilyinstalled when the fireplace is being built, requiring no change in theexterior appearance of the fireplace and in no wise decreasingitsbeneficial value as an open grate fire.

. A further object is to arrange the parts so that they can be readilyassembled and set up.

With the above more important objects in view the invention consistsessentially in providing a hot" air chamber around the fi're box andpipe leading from the firebox and" providing suitable air vents inconnection with the air chamber to permit of the circulation of the airheated by the chamber within the adjacent room or rooms, the parts beingarranged and-constructed as hereinafter more particularly described andlater pointed out in the appendedclaim, reference being had to theaccompanying drawings in which v Figure 1 is a view of a fireplace partin front elevation and part in vertical section.

Fig. 2 is a vertical sectional view through the fireplace, the sectionbeing taken 'at 11' Fig. 1. v

Fig. 3 is a horizontal sectional view through the fireplace, the sectionbeing taken at 3-3 Fig. 1.

Fig. 4 is a side view of the fire box with the collar applied thereon.

Fig. 5 is a side view of the collar.

Fig. 6 is a side view of part of the'hood.

Fig. 7 is a perspective view of one ofthe spacers for the pipe.

In the drawings like-characters of reference indicate correspondingparts in the several figures. I

' The base 1' of the fireplace is made from and then I provide aninterior air wardly extending neck 3, the sides and front of the neckinclining upwardly at an angle of approximately 45 degrees while theback is vertical. Within this fire box the customary grate 4 is located.To the neck I securely rivet a circumscribing flat band 5 drill suitableholes through the band and neck and tap these to receive set screws 6which secure the collar 7 to the neck. The collar is formed with abottom part complementaryito the inner face of the neck and with anextending upstanding flange 8 which projects upwardly beyond the neck.

By providing the band and tapping it in the manner disclosed one canreadily set up the collar by first inserting it in position within theneck and then inserting the screws from the inside and tightening themup.

The flange of the collar receives-the hood 9, the bottom part of whichis substantially rectangular to fit around the flange and the upper partof which flares upwardly and inwardly at the sides and terminates in acontracted circular end 10 which communicates with the lower end of thesmoke pipe- 11, this pipe passing upwardly of the building andterminating at the chimney. The

per 12 of ordinary form which can be mani ulated fromv the interior ofthe room.

he fire box and hood are contained with in a receiving casing 13 spacedat the back and sides from the fire box and hood to chamber 14 utilized.

for heating purposes.

At .the front the easing is flanged out around the front of the fire boxand a flat band 15 is here also applied on the flange to which it isriveted and'the band is. drilled and tapped'to receive fastening set.screws 16 similar to screws 6. -The upper part of the casing flaresinwardly at the sides and is continuous with a sheet metal pipe. 17spaced from the pipe 11 to form a continuation of the chamber 14:. InFigs. 1 and 2 of the drawings the pipe 17 is shown as extending upwardlyto the first floor 18 of the room where it closes in to the pipe 11 andthereby Of the air chamber.

Suitable spiders or spacers 19 are inserted between the pipes, such inthe present instance being made from wire (see F ig. 7) so that theywill not interrupt the circulation while serving to space and stay theinner pipe.

The pipe 17 actually ordinary brickwork 20 fireplace.

From the above disclosure it will'be apparent that the fire box as wellas the smoke pipe 11 leading from the fire box is surcloses off theupper end of the chimney and rounded within the wall by an air chamber,

the air in this chamber being naturally heated by the heat radiatingfrom not only the back and sides of the fire box but also from the smokepipe. The hot air chamber so provided is utilized to advantage inheating the room, cold air vents 21 and 21 being provided adjoining theground floor to admit of cool air entering the bottom of the air chamberwhile a hot air vent 22 is provided at the top adjacent the ceiling,such permitting the hot air to pass from the air chamber into the room.

Obviously when the fireplace is 'in use the, circulating heated air Willadd materially to the value of the fire place as a heating agent andWill not detract in. the

slightest from its value as an open grate. The vent opening 22 can beprovided with a suitableregister 23 controlling the circulation. Y

While I have described the various parts forms a lining to the i smokein detail, still it will be understood I do not wish to be limited tothe precise construct on shown as the various parts can be readilymodified without in the least depart culation within the adjacent roomor rooms.

WVhat I claim as my invention is:

In an open grate fireplace, a fire box pro-- vided at the top and towardthe rear with an upwardly extending neck, a band permanently secured tothe'outer side of the neck. said band and neck being suitably spacedscrew threaded openings, a collar inserted within the neck and extend-ing above the same, screws securing the colto the band, an uplarthroughthe casing wardly flaring hood having the lower end. mounted ',onthe collar, a smoke pipe communicating with the uppcr end of the hootban inclosedair chamber surrounding-the fire box and smoke pipe, said airchamber extendingfor a considerable distance up the pipe, a cold airvent opening to the bottom of-the air chamber and a warm airIgent'leading from the top of the air champrovided with Signed atArcola',-this 4th day of August, 19.

ALEXANDER DUNCAN McLEOD. In the presence of- NELLIE HoE'Y, H. J.DARRAOH.

